The target attribute is what does the trick here. It tells the browser that the frame labelled 'content' should be loaded with the new page "new_content.htm".

target="_top"
target="_top" within a link tag causes the new page to load in the full body of the window, which is useful if you ever want to break out of the frameset you have created and have a frameless page.

target="_parent"
target="_parent" is similar to target="_top" but will refer to the immediate parent of a frame. In more advanced frame usage there may be several nested frames and this allows more control over which frames are specified. (It's actually something developers rarely need to use).

target="_blank"
target="_blank" causes the link to open in a totally new browser window, leaving the page with the refering link still open behind it. Unlike Javascript pop ups, however, the developer has no control over the size of the resulting window - it just depends what the browser happened to do the last time they shut their browser down!

target="_self"
target="_self" loads the page within the same frame as the link tag.

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likes and dislikes, of those you admire, with photos of those memories.This is where you add all your heralding stories, about your likes and dislikes,
is where you add all your heralding stories, about your likes and dislikes, of those you admire, with photos of those memories.